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The Concentration Equipment is a new type of dewatering device that combines the filtration characteristics of the mud layer. Applicable to concentrates and tailings demineralization, widely used in metallurgy, chemical, coal, non-metal dressing, environmental protection and other industries. Thickeners play a vital role as solid-liquid separation devices. How to effectively improve the efficiency of the concentrator? Golden Machinery has summarized some experiences.

The tank of the sedimentation tank is designed as a shallow layer

In general, the settling tank of the concentrator has nothing to do with the capacity of the concentrator, mainly depending on the settling speed and the settling area of ​​the settling tank. However, if the tank is shallow and the material falls, the settling velocity will gradually decrease as the pulp density increases.

Segment feeding

The feed roller of the high efficiency concentrator is placed in the center of the concentrator. It consists of three mixing chambers connected in series in the vertical direction. Each mixing chamber can be fed with a small angle and a small angle. According to the stirring strength, the design is performed from top to bottom from strong to weak to prevent breakage when the flocs are formed. Each chamber is administered separately and may or may not flocculate.

Overflow design is unreasonable

Some concentrator overflow tanks are built in, away from the top edge of the tank and covered by wood. The staff could not observe the overflow ditch throughout the operation.

Rational use of flocculants

The size of the flocs determines the rate of settling, which is related to the molecular weight and rate of addition of the flocculant. The use of a flocculant having a molecular weight of 5 to 20 million and added at a slow rate contributes to the formation of large flocs. It is very important to determine the agitation speed based on the time at which the ore particles form flocs. The stirring speed is pleasant at the beginning, so that the flocculant is completely and uniformly dissolved in the pulp.

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Wet dressing usually requires some products (products) to be dewatered. Most of the fine-grained concentrates are dewatered by concentrated filtration or two-stage or concentrated filtration and drying. The tailings generally need to be transported to the tailings pond intensively; sometimes, intermediate products (intermediate mines) are also needed in the sorting process. Concentrate on meeting the centralized requirements of the next phase of operations. It is usually treated with a Concentration Equipment.

At present, the most widely used in the world is still the ordinary mechanical discharge concentrator. In recent years, high-efficiency concentrators, slant plate concentrators, slant plate concentrators, sloping plate thick boxes, etc. have also been developed and applied.

Ordinary concentrators have two types of high-efficiency concentrators, center drives and peripheral drives, equipped with special devices, the addition and mixing of flocculants, and high settling speed; some have no sloping plate settlement area. The unit area is highly efficient and can reach 7-8t/(m2·d). The instrument is small in size and can be used in small and medium-sized concentrators. Especially in the case of small plant area, the concentrator must be installed indoors.

Inclined plate concentrator: This concentrator is a new type of high efficiency and dense equipment. There is a rectangular box at the top that is connected by a tapered funnel. The mud is sent to the width of the two plates across the frame and then passed between the gap spaces between the upper sloping plates. During this process, ore particles settle between the plates, so the upper inclined plate is called a thickened plate. On the solid deposit on the surface of the board, slide down your weight and then drop the gap between the plates. Finally, the sand cone is discharged from the bottom of the conical funnel, its discharge and concentration of gate valves or nozzles of different diameters are adjusted. The overflow is discharged from the overflow tank.

In recent years, as the market demand for mining and processing has also changed, the price of thickeners has fluctuated significantly. Different specifications, concentrators are available in a variety of prices. It must be clear that the price of the concentrator varies with the needs of the market and the price is different. For customers, the most valuable reference price negotiation is not published on certain websites, but published on a reliable thickener manufacturer's official website.

For more information on mineral processing equipment, you can click Hydrometallurgy Equipment

The benefits of using a concentrating unit to treat sludge are well known. A simple process from 1% to 5% solids sludge results in a 80% reduction in fluid in the sludge. The positive results of reduced volume quickly spread throughout the value chain, driving operational savings and positive environmental benefits.The Golden Machinery takes you through the use of different Concentration Equipment.

Sewage treatment plants typically use concentrating equipment to increase the solids concentration at the end of a particular process step in the activated sludge process. The concentration of sludge increases its solids content and reduces the volume of free water, thereby minimizing the unit load of downstream processes such as digestion and dehydration.

The most common thickening processes include gravity concentration, dissolved air flotation, and drum condensation. Centrifuge thickening is also becoming more common. The type of concentration chosen will generally depend on the size of the wastewater treatment plant, physical constraints, and downstream processes.

Gravity Concentration: This process involves concentrating the sludge into a thicker sludge and placing it in a round tank designed specifically for this purpose. Its use is mainly limited to the aqueous excess sludge of the activated sludge process. It can also be used to concentrate the sludge into a single tank or a mixture of primary and residual activated sludge prior to high speed digestion.

Dewatering of wastewater centrifuges is another sludge concentration method suitable for various situations. They usually require less space than other sludge concentration methods, but usually they are not effective for initial settling. This method accelerates sedimentation using centrifugal force.

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Gravity concentration depends on the behavior and response of gravity and centrifugal force to different particle densities and sizes. Throughout the process, the stream spirals down along the gravity concentration and can accumulate 2 or 3 mineral grades. This means your Concentration Equipment can provide more accurate and efficient downstream processing. Golden Machinery provides the use of different minerals.

Coal preparation

After sorting and sieving, the pulverized coal downstream of the cyclone is treated by gravity concentration.

Iron ore beneficiation

Gravity concentration is used for iron ore processing. After a series of screening processes, the large components of the spiral concentrator are located downstream of the cyclone separator group and are used to classify the iron ore fines from the waste.

Gold dressing

The gravity concentration spiral in the gold concentrate can be used for carbon removal. As throughput increases, costs can be significantly reduced.

Platinum beneficiation

Gravity concentration is the flow used to separate the chromium that has been classified from the main platinum stream through the desiccant screen.

Estimates such as this highlight the need for new discoveries, extracting more efficient elements from known reserves, processing mine waste or tailings, and recycling industrial and municipal metal-rich waste. The focus of this review is on the extraction of metal minerals, especially polymetallic ores, waste rock or tailings, using proven technologies and outstanding innovation potential variants.

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Hydrometallurgy involves the extraction of metallurgical, scientific, technical, and chemical combinations from various metal-containing sources to recover metals. These sources include ores, solutions, recycled materials, waste streams, intermediates and mineral concentrates that are converted into products that are useful to society. A method and apparatus for hydrometallurgical leaching of unseparated broken mineral ore using a vessel having a liquid flow forming nozzle at a lower portion thereof. The Hydrometallurgy Equipment provided by Zhejiang Golden Machinery Factory has high working efficiency.

This is a method of extracting a metal or a metal compound from ore by pretreatment, which involves separating the impurities and the precipitate using a leaching agent. It is used to extract uranium, gold, zinc, silver and copper from low-grade ore, and has been improved by solvent extraction and ion exchange.

The various technologies used in these processes include:

Leaching, autoclave, column, atmospheric pressure and high pressure acid depending on metal ore

Recycling, carbon leaching and carbon sizing, oxidation, biological or pressure methods and cementation

Solution purification, ion exchange, solvent extraction, electrolytic precipitation, precipitation and process simulation to determine the flow chart design

This broader technical field is highly efficient in on-site metal production and is part of an increasing number of metallurgical processes. It involves research, research and new technologies to obtain pure metals and better metal extraction options.

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